Combination well head and hanger



17, 1939. I A. J. PENICK El AL 2,144,227

COMBINATION WELL HEAD AND HANGER Filed Feb. 14, 1956 Patented Jan. 17,1939 UNITED STATES PATENT OFFICE Arthur J. Penick and Kirby .r. Penick,Houston, Tex.

Application February 14, 1936, Serial No. 63,848

2 Claims.

This invention relates to a combination well head and hanger.

An object of the invention is to provide, in a well head, a novel typeof hanger designed not only to anchor an inner pipe, in the head, butalso to render the corresponding joint of the head fluid-tight.

Another object of the invention is to provide, in a well head, a tubularhanger for supporting a pipe and having an external seal ring formedintegrally therewith whereby the corresponding joint of the well headmay be rendered fluidtight.

With the above and other objects in view, the invention has particularrelation to certain novel features of construction, arrangement of partsand use, an example of which is given in this specification andillustrated in the accompanying drawing wherein:

The figure shows a side view of a well head, partly in section, showingthe hanger therein.

In the drawing the numeral 1 designates the outer, or surface, casing tothe upper end of which the casing head 2 is attached. A braden head 3 ismounted on the casinghead, and a tubing head 4 is mounted on the bradenhead. On the tubing head is shown a connection 5 for the attachment ofthe christmas tree or other flow connections thereto. The hanger may,however, be employed in other combinations than that above specified,and a single hanger, or a plurality of hangers may be used depending onthe number of pipes in the well.

The heads 2, 3, and 4, have the respective external annular flanges 6,l, E, and B, 8, as shown, and the connection 5 has the external annularflange 9, said flanges have the registering grooves II], II], H, H, andI2, I2. The hangers are similar in construction, each being indicated bythe numeral l3. Each hanger has an external annular flange I4 and theseflanges have the upper and lower ribs, as l5, which fit into thecorresponding grooves I0, II, and i2. The hangers are internallythreaded to be screwed on to the upper end of the corresponding innerpipes l6, I1, and I8, respectively, whereby the upper ends of said innerpipes may be anchored to the well head.

The registering flanges of the heads 2, 3, 4, and connection 5 areanchored securely together by means of the bolts I9, 20, and 2i, wherebythe ribs l5 are firmly seated in their corresponding grooves to formfluid-tight joints.

The drawing and description disclose what is now considered to be apreferred form of the invention by way of illustration only, while the 5broad principle of the invention will be defined by the appended claims.

What we claim is:-

1. In combination, an outer pipe, an intermediate pipe and an inner pipein a well and whose upper ends terminate at different elevations, alower head, an intermediate head and an upper head, the lower head beingattached to the upper end of the outer pipe, a hanger connected to theupper end of the intermediate pipe, a hanger connected to the upper endof the inner pipe, each hanger having similar ends and having anexternal flange located midway between said ends, said flanges fittingbetween the intermediate head and the head above and beneath,respectively, the hanger flanges and the abutting parts of therespective heads being formed with interfitting grooves and ribs formingsealing means and which space said heads apart to render leakage pastthe sealing means visible from the outside of the head, and meansconnecting the heads together.

2. In combination, an outer pipe, an intermediate pipe and an inner pipeadapted to be located in a well and whose upper ends terminate at 0different elevations, a lower head attached to the upper end of theouter pipe, an intermediate head and an upper head, said heads havingend flanges,

a hanger connected to the upper end of the intermediate pipe, a hangerconnected to the upper end of the inner pipe, each hanger being tubularand having similar ends having an external flange located approximatelymidway between its ends, the hanger flanges fitted between thecorresponding head flanges, the hanger flanges and the abut- 40 tingparts of the respective heads being formed with interfitting grooves andribs and formin sealing means, said hanger flanges and sealing meansspacing said heads apart whereby to render leakage past the sealingmeans visible from the outside of the head, and means connecting thehead flanges.

ARTHUR J. PEN'ICK.

KIRLBY T. PENICK.

